package c5.Example4;

public class Example4 {
    public static void main(String[] args) {
        String s ="itcast";
        System.out.println("将it替换cn.it的结果："+s.replace("it","cn.it"));
        String s1 = " i t c a s t ";
        System.out.println("去除字符串两端空格后的结果："+s1.trim());
        System.out.println("去除字符中所有空格后的结果："+s1.replace("",""));
    }
}
